twinturbo 4efte...

[Gryzor]

Will need to be dual wastegates I would have though mate? As each one will flow different amounts of air. So will need to be set up individually?

are you venting off 2 cylinders to each turbo then ?

 

[J25GTi]

I think he is using 1 turbo to feed the other. So each would would need a ewg? I don't really know tbh! Just makes sense in my mind

 

[Gryzor]

but if you have the waste gate before the turbos then you will not need 2, this kind of idea

it won't matter what way you compound /seqential connect the turbos
other example
http://forums.evolutionm.net/evo-en...6-full-race-twin-scroll-30r-results-data.html

 

[gurrturbo]

What about the twin turbo pack off an rx7 would that not be an easyer set up as the 2 turbos are joined together..... It's hard to explain but look it up

 

[jpecc]

Made in Japan by VAZ Speed twinturbo kit for 4age

some pics a came across the net...

ive updated page 1 with pics and vids..on my 4e-fTTe biturbo;; tnx toyotagtturbo


here the 2 ct9's

modded piston increased sealing less blowby..

 

[omikron]

but if you have the waste gate before the turbos then you will not need 2, this kind of idea

it won't matter what way you compound /seqential connect the turbos
other example
http://forums.evolutionm.net/evo-en...6-full-race-twin-scroll-30r-results-data.html

in the photo wouldnt make sense as you'd be ruining the pulse separation


also twin scroll is different from twin turbo

 

[Sheldon]

wow.. doing stuff on the cheap side lol.

 

[jpecc]

4agze intercooler

custom made ex.manifold

2 turbo ct9 .. full boost at 3000 rpm

pistons 5efe
camshafts 5efhe / tri angle valve job
port n polished / intake manifold polished
oversized throttle body custom at machine works corp.
lightened flywheel custom at machine works corp.
exeddy clutch cover 4age / trd clutch disk
denso iridium spark plugs
modded cam gear
2 turbo ct9 / 1 wastegate controlled boost
ecu japanese aftermarket hmmm.. 4efte
c56 transmission 4age / gears ratios
hks silicone hoses
hks fuel pump denso

 

[TheStarletGT]

No such thing as full boost by 3000rpm, no matter how bad you want to sound like.


Ok, so imagine your running 15 psi, and your saying you get right on the sport 15psi at 3000rpm = rubbish. There is no such thing when people say full boost by X amount of rpm. Since your saying you get full boost by 3000rp, so does that mean your getting 5psi at 1000rpm. Sounds like jack shet if you ask me. Ok, so 10psi at 2000rpm, i dont think so.

 

[chinesemafia]

im just thinking wouldnt it have been better to have runners 2 and 3 feeding 1 turbo and 1 and 4 feeding the other ??

 

[Vglanza]

im just thinking wouldnt it have been better to have runners 2 and 3 feeding 1 turbo and 1 and 4 feeding the other ??

think that was mentioned earlier in the post, that 2cylinders couldn't power a turbo, need a minimum of 3.

 

[Corey_gt]

No such thing as full boost by 3000rpm, no matter how bad you want to sound like.


Ok, so imagine your running 15 psi, and your saying you get right on the sport 15psi at 3000rpm = rubbish. There is no such thing when people say full boost by X amount of rpm. Since your saying you get full boost by 3000rp, so does that mean your getting 5psi at 1000rpm. Sounds like jack shet if you ask me. Ok, so 10psi at 2000rpm, i dont think so.

You seriously have'nt a clue.

 

[Aidan@EP-styling]

Somebody mentioned using VNT turbos. This IMO is no better than using an external wastegate. I suppose an external wastegate is probably more reliable than a variable vane turbo (vnt). VNT's give alot of bother in VAG motors with carbon build up etc. I would stear clear of them for that reason but on the other hand I would like to see what power a GT17 would make on a 4E!

 

[lingl9z]

Well done for doing something different mate, what's it like on the road?! Ymir though hmm!

 

[Mikey B]

Somebody mentioned using VNT turbos. This IMO is no better than using an external wastegate. I suppose an external wastegate is probably more reliable than a variable vane turbo (vnt). VNT's give alot of bother in VAG motors with carbon build up etc. I would stear clear of them for that reason but on the other hand I would like to see what power a GT17 would make on a 4E!

VNT turbo's will still have a wastgate to control the boost but has ajustable veins on the exaust side to control the flow to minimise lag,

http://paultan.org/2006/08/16/how-does-variable-turbine-geometry-work/

 

[Aidan@EP-styling]

VNT turbo's will still have a wastgate to control the boost but has ajustable veins on the exaust side to control the flow to minimise lag,

http://paultan.org/2006/08/16/how-does-variable-turbine-geometry-work/

Can they withstand the hot temperatures of a petrol engine compared to diesel? No they cant!

 

[steveatyork]

Agree with above,there's a few lads on rtoc useing them and if they are setup correctly there's good gains to be had

just think,a tdo5 that spools like a ct9
I'm sure porshe use these on there top end turbo cars

 

[Mikey B]

Not what i'm saying tho is it all i have said is once them vanes are open for more top end power you still have to control the amount of exaust gases going into it.

Never said nothing about if they are capable of being put on a petrol car and can withstand the heat of one.

Porsche have used them on petrol cars like it said in the link i posted.

 

[Aidan@EP-styling]

Would be interesting to see a vnt working but Im referring to the Vag gt15-gt17 series VNT turbos, they don't work well on the petrols but if you say Porsche use them then it would be very interesting to see them on a 4e

 

[Corey_gt]

http://en.wikipedia.org/wiki/Variable_geometry_turbocharger